Secondary wiring terminal cover

Abstract

The utility model relates to a secondary wiring terminal cover, which belongs to the technical field of circuit breakers and comprises a first cover body, a second cover body and a third cover body, the support is arranged on the upper end face of the first cover body, the support is located above the boss, and a plurality of first installation openings are formed in the support; the second cover body is arranged on the upper end face of the support, a plurality of buckling feet are arranged on the side, close to the support, of the second cover body, and the buckling feet correspondingly stretch into the first installation openings to prevent the second cover body and the support from shaking; a mounting hole is formed in the middle of the limiting boss, and the mounting hole is embedded into the boss to prevent the second cover body from tilting. According to the utility model, the second cover body is buckled with the bracket through the plurality of buckling feet inside, so that the second cover body is prevented from shaking up and down; and the second cover body is embedded into the boss of the first cover body through the mounting hole formed in the middle of the limiting boss of the second cover body, so that the second cover body is prevented from tilting and moving back and forth.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely relates to a secondary wiring terminal cover. BACKGROUND

[0002] The secondary wiring terminal of the circuit breaker mainly plays the role of connecting the internal circuit of the low-voltage circuit breaker and the external circuit of the user, and is an important component for realizing the connection of the entire circuit. With the market demand, the circuit breaker is used in a wider and wider range in the new energy field (such as the photovoltaic field and the wind power field) today, which has higher requirements for the circuit breaker. The traditional secondary wiring terminal of the circuit breaker is mostly directly exposed, which cannot effectively prevent metal particles, sand and other particles from falling into the secondary wiring terminal to cause the short circuit of the secondary wiring terminal of the circuit breaker, thereby causing the burning of the circuit breaker.

[0003] At present, some manufacturers have provided the secondary wiring terminal cover, but the fixing mode of the current secondary wiring terminal cover mostly adopts the installation mode of screws, which is not only complicated to install, but also not stable enough. For example, when subjected to vibration or external force impact, the cover body is prone to up-and-down shaking, which not only affects the protection effect of the cover body on the terminal, but also may cause the internal wiring to loosen in the long run, affecting the normal operation of the electrical equipment. On the other hand, after installation, some secondary wiring terminal covers may be tilted or moved forward and backward, so that the terminal cannot be fully and effectively protected, increasing the safety hazard.

[0004] The terminal cover of the molded case circuit breaker disclosed in Chinese patent CN209496792U is composed of a top plate, two side panels and a rear plate, and is internally provided with a horizontal partition plate and a phase-to-phase partition plate. The phase-to-phase partition plate separates the terminals, and the horizontal partition plate leaves the high-temperature and high-pressure gas generated by breaking in the upper cavity. The terminal cover is clamped with the recess of the circuit breaker shell in the vertical direction to prevent horizontal movement. However, there are problems in actual use: first, the gas energy impact is large when the circuit breaker breaks, and the top plate of the terminal cover is prone to loosen in the vertical direction, leaving a gap with the top operating hole of the circuit breaker, and the electric arc may be sprayed to the adjacent phase through the gap, causing phase-to-phase short circuit and safety hazard; second, the upper cavity formed by the horizontal partition plate reduces the flow space of the high-temperature and high-pressure gas, making it difficult to discharge the gas and reducing the ventilation effect. SUMMARY

[0005] The purpose of the present application is to overcome at least one of the defects of the prior art and provide a secondary wiring terminal cover. The second cover body of the secondary wiring terminal cover is clamped with the support through the plurality of clamping feet in the interior, thereby limiting the up-and-down shaking of the second cover body; and the mounting hole in the middle of the limiting boss of the second cover body is embedded in the boss of the first cover body, thereby preventing the second cover body from tilting and avoiding the forward and backward movement of the second cover body.

[0006] The purpose of the utility model can be realized through the following technical schemes:

[0007] A secondary wiring terminal cover, comprising:

[0008] A first cover body, a boss is arranged on a side surface of the first cover body;

[0009] A support is arranged on an upper end surface of the first cover body, the support is above the boss, and a plurality of first mounting holes are arranged on the support;

[0010] A second cover body is arranged on an upper end surface of the support, and a plurality of buckling feet are arranged on a side of the second cover body close to the support;

[0011] The plurality of buckling feet correspondingly extend into the first mounting holes, so that the second cover body and the support are prevented from shaking;

[0012] A limiting boss is arranged on the second cover body, and a mounting hole is arranged in a middle portion of the limiting boss and embedded in the boss, so that the second cover body is prevented from being raised.

[0013] Further, a second mounting hole is arranged on a side of an upper end surface of the second cover body, so that a secondary wiring terminal is connected.

[0014] Further, a plurality of avoiding grooves are arranged on the upper end surface of the second cover body at intervals, so that a user installs a circuit breaker.

[0015] Further, the plurality of buckling feet are arranged below the plurality of avoiding grooves, respectively.

[0016] Further, the avoiding grooves are arc-shaped grooves.

[0017] Further, the first mounting hole is an L-shaped mounting hole with a wide end and a narrow end.

[0018] Further, the buckling feet are L-shaped, and the buckling feet slide from the wide end of the first mounting hole to the narrow end of the first mounting hole.

[0019] Further, the first cover body and the support are connected through screws, and specifically, the first cover body and the support are mounted on a circuit breaker body through the screws.

[0020] Further, a first reinforcing rib is arranged in the first cover body.

[0021] Further, a second reinforcing rib is arranged in the second cover body.

[0022] Compared with the prior art, the secondary wiring terminal cover is provided, the second cover body of the secondary wiring terminal cover is buckled with the support through the plurality of buckling feet in the second cover body, so that the second cover body is prevented from shaking up and down, and the mounting hole arranged in the middle portion of the limiting boss of the second cover body is embedded in the boss of the first cover body, so that the second cover body is prevented from being raised and from moving forward and backward. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is an exploded view of the secondary wiring terminal cover in the embodiment;

[0024] Figure 2 is a schematic view of the second cover body in the embodiment;

[0025] Figure 3 is a perspective view of the secondary wiring terminal cover in the embodiment;

[0026] Figure 4 is a sectional view of the secondary wiring terminal cover in the embodiment;

[0027] Figure 5 is a first wiring mode of the secondary wiring terminal in the embodiment;

[0028] Figure 6 is a second wiring mode of the secondary wiring terminal in the embodiment;

[0029] Reference signs in the drawing: 1 - second cover body; 101 - buckle; 102 - second mounting port; 103 - limiting boss; 104 - mounting hole; 105 - avoiding groove; 2 - bracket; 201 - first mounting port; 3 - first cover body; 301 - boss; 4 - secondary wiring terminal. DETAILED DESCRIPTION

[0030] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiment is implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0031] EMBODIMENT

[0032] The embodiment provides a secondary wiring terminal cover, and specific structures are shown in Figures 1-4 , comprising a first cover body 3, a bracket 2 arranged on the upper end face of the first cover body 3, and a second cover body 1 arranged on the upper end face of the bracket 2.

[0033] The first cover body 3 is provided with a boss 301 on the side face, the bracket 2 is above the boss 301, and a plurality of first mounting ports 201 are arranged on the bracket 2.

[0034] The second cover body 1 is provided with a plurality of buckles 101 on the side close to the bracket, the plurality of buckles 101 correspondingly extend into the first mounting ports 201 to avoid shaking of the second cover body 1 and the bracket 2, and a limiting boss 103 is arranged on the side close to the bracket, the limiting boss 103 is provided with a mounting hole 104 in the middle, the mounting hole 104 is embedded in the boss 301, and the second cover body 1 is prevented from being warped.

[0035] In the embodiment, the second cover body 1 is further provided with a second mounting port 102 on the upper end surface, so as to facilitate wiring of the secondary wiring terminal 4. The secondary wiring terminal 4 has two wiring modes, which are as follows.

[0036] The first wiring mode is that the screwdriver is inserted into the wiring port and pressed downward, and the wire is inserted into the wiring port, as shown in Figure 5 ; more specifically, first, select the appropriate screwdriver, and accurately insert the head of the screwdriver into the wiring port. Then, press the screwdriver evenly and stably in the vertical downward direction, so that the clamping structure or elastic component inside the wiring port is in an open or loose state. While maintaining the pressing, slowly insert the wire to be connected into the wiring port according to the correct direction and position. Ensure that the wire is inserted deep enough and accurately positioned to achieve good electrical connection.

[0037] The second wiring mode is that the secondary wiring terminal 4 is directly plugged after being connected with the wire, as shown in Figure 6 . More specifically, for the secondary wiring terminal 4, first properly connect the wire to be connected to the secondary wiring terminal 4 according to the specification requirements. Ensure that the connection between the wire and the wiring terminal is firm and reliable, such as by tightening the screw, pressing the wire nose, etc., to ensure the stability and conductivity of the electrical connection. After completing the connection of the wire and the secondary wiring terminal 4, directly butt joint the secondary wiring terminal 4 with the wire connected to the corresponding connection socket or interface part, to complete the entire plug-in process.

[0038] In the embodiment, the upper end surface of the second cover body 1 is further provided with a plurality of avoiding grooves 105, so as to facilitate the user to install the circuit breaker. More specifically, a plurality of said buckles 101 are respectively arranged below a plurality of said avoiding grooves 105; said avoiding grooves 105 are arc grooves, so as to facilitate the user to avoid installing screws when installing the circuit breaker.

[0039] In the embodiment, the first mounting port 201 is an L-shaped mounting port with one wide end and one narrow end; the buckle 101 is L-shaped, and the buckle 101 slides from the wide end of the first mounting port 201 to the narrow end of the first mounting port 201.

[0040] In the embodiment, the first cover body 3 and the bracket 2 are connected by screws, specifically, they are installed on the circuit breaker body by screws. Of course, the first cover body 3 and the bracket 2 can also be connected by other ways, such as clamping connection.

[0041] In the embodiment, the first cover body 3 is provided with a first reinforcing rib, and the second cover body 1 is provided with a second reinforcing rib, so as to increase the strength of the first cover body 3 and the second cover body 1 through the first reinforcing rib and the second reinforcing rib.

[0042] Working principle:

[0043] The second cover body 1 of the secondary wiring terminal cover is buckled with the support 2 through the plurality of buckling feet 101 inside, so as to limit the up and down shaking of the second cover body 1; and the mounting hole 104 arranged in the middle of the limiting boss 103 of the second cover body 1 is embedded into the boss 301 of the first cover body 3, so as to prevent the second cover body from being warped and avoid the front and back movement of the second cover body.

[0044] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, and in accordance with the technical essence of the present application, still fall within the protection scope of the present application.

Claims

1. A secondary wiring terminal cover characterized by, Include: First cover (3), the first cover (3) side is provided with boss (301); Support (2) provided on the upper end surface of the first cover (3), the support (2) is above the boss (301), a plurality of first installation port (201) is provided on the support (2); Second cover (1) provided on the upper end surface of the support (2), the second cover (1) is provided with: A plurality of buckles (101), a plurality of the buckle (101) corresponding to the first installation port (201) into, to avoid the second cover (1) and the support (2) shake; Limit boss (103), the limit boss (103) is provided with mounting hole (104) in the middle, the mounting hole (104) is embedded in the boss (301), prevent second cover (1) up.

2. A secondary terminal cover according to claim 1, wherein The upper end surface of the second cover (1) is also provided with second installation port (102).

3. A secondary terminal cover according to claim 1, wherein The upper end surface of the second cover (1) is also provided with a plurality of spacing groove (105).

4. A secondary terminal cover according to claim 3, wherein A plurality of the buckle (101) is respectively provided below a plurality of the spacing groove (105).

5. A secondary terminal cover according to claim 3, wherein The spacing groove (105) is arc groove.

6. A cover for a secondary wiring terminal according to claim 1, wherein The first installation port (201) is L type installation port with one end wide and one end narrow.

7. A secondary terminal cover according to claim 6, wherein The buckle (101) is L type, the buckle (101) from the first installation port (201) wide end slip into the first installation port (201) narrow end.

8. A cover for a secondary wiring terminal according to claim 1, wherein The first cover (3) and the support (2) are connected by screw.

9. A cover for a secondary wiring terminal according to claim 1, wherein The first cover (3) is provided with first reinforcing rib.

10. A cover for a secondary wiring terminal according to claim 1, wherein The second cover (1) is provided with second reinforcing rib.

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